Cant view my data on thingspeak app

Question

Eseme Kluivert 2022-6-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1747235-cant-view-my-data-on-thingspeak-app

评论： Christopher Stapels 2022-7-6

I am using an esp-01S Wi-Fi module to send temperature and heartbeat information to the thingspeak app using the AT comand from the arduino my code runs well and it establishes a connection on the serial monitor but i am unable to view the data on the thingspeak app Here is my thingspeak command

void setup() { 
   lcd.begin(16, 2); 
   pinMode(blinkPin,OUTPUT); // pin that will blink to your heartbeat! 
   pinMode(fadePin,OUTPUT); // pin that will fade to your heartbeat! 
   Serial.begin(115200); // we agree to talk fast! 
   interruptSetup(); // sets up to read Pulse Sensor signal every 2mS 
   // IF YOU ARE POWERING The Pulse Sensor AT VOLTAGE LESS THAN THE BOARD VOLTAGE, 
   // UN-COMMENT THE NEXT LINE AND APPLY THAT VOLTAGE TO THE A-REF PIN 
   // analogReference(EXTERNAL); 
   lcd.clear(); 
   lcd.setCursor(0,0); 
   lcd.print(" Patient Health"); 
   lcd.setCursor(0,1); 
   lcd.print(" Monitoring "); 
   delay(4000); 
   lcd.clear(); 
   lcd.setCursor(0,0); 
   lcd.print("Initializing...."); 
   delay(5000); 
   lcd.clear(); 
   lcd.setCursor(0,0); 
   lcd.print("Getting Data...."); 
   ser.begin(9600); 
   ser.println("AT"); 
   delay(1000); 
   ser.println("AT+GMR"); 
   delay(1000); 
   ser.println("AT+CWMODE=3"); 
   delay(1000); 
   ser.println("AT+RST"); 
   delay(5000); 
   ser.println("AT+CIPMUX=1"); 
   delay(1000); 
   String cmd="AT+CWJAP=\"Alexahome\",\"98765432\""; 
   ser.println(cmd); 
   delay(1000); 
   ser.println("AT+CIFSR"); 
   delay(1000); 
} 
void esp_8266() { 
   // TCP connection AT+CIPSTART=4,"TCP","184.106.153.149",80 
   String cmd = "AT+CIPSTART=4,\"TCP\",\""; cmd += "184.106.153.149"; // api.thingspeak.com 
   cmd += "\",80"; 
   ser.println(cmd); 
   Serial.println(cmd); 
   if(ser.find("Error")) { 
      Serial.println("AT+CIPSTART error"); 
      return; 
   } 
   String getStr = "GET /update?api_key="; 
   getStr += apiKey; 
   getStr +="&field1="; 
   getStr +=String(temp); 
   getStr +="&field2="; 
   getStr +=String(pulse); 
   getStr += "\r\ end"; 
   // send data 
   length cmd = "AT+CIPSEND=4,"; 
   cmd += String(getStr.length()); 
   ser.println(cmd); 
   Serial.println(cmd); 
   delay(1000); 
   ser.print(getStr); 
   Serial.println(getStr); 
   //thingspeak needs 15 sec delay between updates 
   delay(3000); 
} 

Also i tried using the examples on thingspeak to upload a value in the channel but the serial monitor kept showing Error

"wifi shield not present"

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Walter Roberson 2022-6-27

Please format your code.

Remove the currently posted version of the code here. Then, in the editor, click on the ">" button in the "CODE" toolstrip immediately above the editor entry window. That will create a code entry region. Paste the formatted code into there.

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Answer 1

Vinod 2022-6-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1747235-cant-view-my-data-on-thingspeak-app#answer_994495

I recommend starting with the example here as a starting point for your code. The ThingSpeak library on Github is to help users get started and I would strongly recommend using that when possible.